Viv wrote:Funny but Bruno has you beat by a year or two as he got Gary to build some thing remarably similar:-)

didn't work unfortunatly though:-)

Gary Robinson is a good builder, for sure. So, are you betting against it? I have the Hinote Criteria on my side, and I'm not sure Gary was blessed with that, though he has an awfully good eye. The proportions wouldn't have to be off by much, though, to keep it from catching hold.

I'm not exactly sure where to fuel it - maybe Rosscoesque, with a spray ring right upstream from where the intake air spouts in? Or, more Steve style, with a ring just inside the flare?

Larry Cottrill wrote:I'm not exactly sure where to fuel it - maybe Rosscoesque, with a spray ring right upstream from where the intake air spouts in? Or, more Steve style, with a ring just inside the flare?

I have a Loch Ness Scottish design, (Scotland is said to be the only country where the ( ) couldn't make a living, (choose your ethnicity). The Scots are known for penny-pinching. Anyway, a very inexpensive valveless design could be made of very cheap plumbing pipe with a single washer sandwiched inbetween the front bell housing and combustion chamber segment. Then you could thread in a front intake snorkel flush with the washer providing a reflective front barrier/wall very similar to the recent valveless designs that are being presented.
Mark

Last edited by Mark on Tue Mar 01, 2005 1:31 am, edited 2 times in total.

Let me clear up something about Gary Robinson's Big Black Beast. He and I never had the benefit of the insight into the necessary geometry that you now have. We both thought that the inner end of the exhaust pipe should be fairly close to the chamber bottom.

If we were doing it today, I'd tell Gary to position the tailpipe exactly as you have drawn it.

Also, Gary had other things to attend to, so he only did a few unsuccessful tests before abandoning the project.

I can't remember the fueling system anymore. Maybe it was also less than conducive to success, but I don't think so. Gary always built great fueling gear.

Dave wrote:Larry
If you are serious, and want to go BIG, I may have just the thing for the combustion chamber. Check out this widget.
Dave

Dave -

If you can publish even a crude drawing that shows the exact dimensions, we can design one that YOU can built out of it ;-)

As you can imagine, the final result will be about 3x as long as the piece you have there. You would need to be able to put a decent flare around the rim that's at the bottom in your picture, and weld a plate across the rim at the top [unless maybe it's already closed off?].

Hey there,
I was just curious to see if anyone had ever followed up on your lock reynst idea. It seems absolutely brilliant to me.
I can see how the gap eliminates the need for external intake ports to be added. With the proper ratio of intake gap
area to exhaust area it should act just the way the intake ports work on other closed front engines. You've given me
alot to think about.